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So I am assuming that you haven't written all this code yourself then?

Whoever wrote the "costMatrix()" function has given you a pretty good hint as to what to do. The code that you have posted shows how to declare a function, costMatrix, is an example of this, and also how to call that function from within other parts of your code (look at the fourth line of code in your main() function body. So all you need to do is follow those examples.

would the proper name be V_matrix()?

The proper name would be whatever you wanted to call it that makes sense to you. But yes, that is closer to the correct syntax to yuse when declaring the function. But I wouldn't call the function the same as an existing variable name. You may want to call the function something descriptive such as "calculateVMatrix()", although I am sure that as far as your algorithm goes, that there is probably an even better description for what generating the V matrix is really doing.

The code that you've got there to do the multiplication looks fine. You just need to name the function properly (you can't have the square brackets in a function name) and then call that function from within your code. And I can't see how this would be too much of a drama because you have already done exactly this with the "costMatrix()" function!

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college_studentAuthor Commented: 2014-04-13

how would i call it within the code? and would the proper name be V_matrix()?